JP2000257953A - Hot water supply apparatus and method for filling bathtub with hot water and cleaning - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot water supply apparatus in which a bathtub can automatically be cleaned and filled with hot water, even if automatic cleaning of bathtub is designated after automatic filling with hot water is designated. SOLUTION: In a hot water supply apparatus, having an automatic bathtub cleaning function and a function for filling the bathtub automatically with hot water, the control section 4 comprises a timer control means 44 for measuring the time which elapsed after deliver of a command, a remote controller input decision means 41 for making a decision as to whether or not the time elapsed after designation exceeds a waiting time based on the content of a command from a remote controller 3, a hot water filling control means 42 for performing hot water filling operation based on a command from the remote controller input decision means 41 when the waiting time is exceeded, and a cleaning control means 43 for performing cleaning operation, based on a command from the remote controller input decision means 41, when the elapsed time is within the waiting time and automatic bathtub cleaning is included in the content of a command from the remote controller.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater having an automatic bath tub cleaning function and a bath tub automatic hot water filling function, and a bath tub hot water cleaning method for the water heater.

[0002]

2. Description of the Related Art FIG. 4 is a block diagram showing a conventional bath system. The bath system is generally, as shown in FIG.
It comprises a water heater main body 1, a bathtub 2 and a remote controller 3. Further, the water heater main body 1 and the remote controller 3 constitute a water heater. In FIG. 4, reference numeral 1 a denotes a remote control input recognition unit for inputting an operation instruction, a bathtub automatic hot water filling instruction, a bathtub automatic cleaning instruction and the like inputted from a remote controller and recognizing the contents of the instruction. A conventional control unit 5 for controlling a circulating water suction pipe, one end of which is connected to the bathtub 2 and the other end of which is connected to a circulating pump 6 described later.
a is a drain pipe whose upstream end is connected to the bottom of the casing of the circulation pump 6 and a drain plug formed in the casing;
5b is a discharge pressure adjusting pipe connected to the circulating water supply pipe 5, 6 is a circulating pump whose suction side is connected to the circulating water absorbing pipe 5, 7 is a port 7a connected to the drain pipe 5a, and 7b is a discharge pressure adjusting pipe 5b. And the port 7c is connected to the drain pipe 8,
A drain valve having a closing function, 9 is a heat exchange water pipe connected to the discharge side of the circulation pump 6, 10 is a heat exchanger, 11 is a burner for heating the heat exchanger 10, and 12 is an outlet of the heat exchanger 10. A tapping pipe connected to a sprue, 13 is a washing tapping pipe whose downstream end is connected to a washing nozzle 23 described later, 14 is a reheating tapping pipe having one end connected to the tapping pipe 12, and 15 is a port 15a. The port 15b is connected to the tapping pipe 12, and the port 15b
And the port 15c is connected to the washing water discharge pipe 13,
A three-way valve having a closing function, 16 is a water supply pipe which is connected to a water supply device or a water supply and supplies water for hot water filling, 17 is a heating pipe having one end communicating with the water supply pipe 16 and passing through the inside of the heat exchanger 10, and 18 is a heat pipe. A bathtub-side water supply pipe whose upstream end is connected to a check valve 20 described later, 19 is a hot water filling solenoid valve whose upstream end is connected to the heating pipe 17 and is opened at the time of hot water filling, 20 is an upstream end Is connected to the hot water-filled solenoid valve 19 and the downstream end is the bathtub-side water supply pipe 1.
A check valve connected to 8, 21 is a faucet communicating with the heating pipe 17, 22 is a reheating tap for connecting to the reheating water pipe 14 communicating with the bathtub 2 to discharge hot water during reheating, and 23 is a washing port. A washing nozzle connected to the water outlet pipe 13 for jetting water when washing the bathtub 2, 24 is a circulating water absorbing portion disposed on a side wall near the bottom of the bathtub 2, and 25 is connected to the circulating water absorbing portion 24 and provided on the bottom surface of the bathtub 2. It is a suction tube opened toward.

A description will now be given of a bathtub automatic hot water filling operation and a bathtub automatic cleaning operation in the conventional water heater configured as described above. In FIG. 4, when the remote controller 3 instructs bathtub automatic hot water filling, the control unit 4A receives the instruction via the remote control input recognition unit 1a and starts the bathtub automatic hot water filling operation. When the remote controller 3 instructs automatic bathtub cleaning, the controller 4A receives the instruction via the remote controller input recognition unit 1a and starts the automatic bathtub cleaning operation. First, the bathtub automatic hot water filling operation will be described. In the bathtub automatic hot water filling operation, the drain valve 7 is "closed", the three-way valve 15 is in a state where the ports 15a and 15b are in communication, the hot water filling solenoid valve 19 is "open", and the circulation pump 6
Is operating. In this state, the water supply pipe 1
The tap water from 6 is heat-exchanged in the heat exchanger 10 and the heating pipe 1
7 and the hot water in the heating pipe 17 is supplied by the hot water filling solenoid valve 1.
9, is supplied to the suction side of the circulation pump 6 via the check valve 20 and the bathtub side water supply pipe 18. Hot water discharged from the circulation pump 6 is supplied to the hot water outlet 2 via the heat exchange water pipe 9, the heat exchanger 10, the hot water pipe 12, the three-way valve 15, and the hot water drain pipe 14.
Hot water is poured from 2. The amount of hot water from the reheating port 22 is detected by a water level detecting pressure switch or a water meter. When the amount of hot water in the bathtub reaches a predetermined amount, the hot water filling solenoid valve 19 is closed, the circulation pump 6 is stopped, and the tapping of the hot water outlet 22 is stopped.

Next, the bath tub cleaning operation will be described. In the bathtub automatic cleaning operation, first, the water in the bathtub 2 is drained. This drainage is performed via the suction pipe 25, the circulation water suction part 24, the circulation water suction pipe 5, the circulation pump 6, the drain pipe 5a, the drain valve 7, and the drain pipe 8. Thereafter, a detergent is charged into the bathtub 2, the hot water filling electromagnetic valve 19 is opened, a predetermined amount of water is supplied, and the washing water is stored in the bathtub 2. Next, the washing water is supplied to the circulation pump 6.
To circulate. This circulation is performed by the suction pipe 25 and the circulating water suction unit 2.
4, circulating water suction pipe 5, circulating pump 6, heat exchange water pipe 9, heat exchanger 10, hot water pipe 12, three-way valve 15, washing water pipe 13,
This is a circulation of the cleaning nozzle 23. Next, the washing water is drained.
Drain from Then, rinse water with hot water filled solenoid valve 19
Is opened, water is supplied, circulating rinsing is performed by the above-described circulation, rinsing water is supplied, circulating rinsing is performed, and this is repeated a predetermined number of times.

[0005] In such a water heater, an operator may instruct bathtub automatic hot water filling after instructing automatic bathtub cleaning, or may instruct bathtub automatic hot water filling after instructing bathtub automatic hot water filling. . When the bathtub automatic hot water filling is instructed immediately after the bathtub automatic cleaning instruction, the control unit 4A
Does not cause any particular problem because bathtub automatic hot water filling is performed after bathtub automatic cleaning. However, if the bathtub automatic cleaning is instructed immediately after the bathtub automatic hot watering is instructed, the control unit 4A performs the bathtub automatic cleaning immediately after performing the bathtub automatic hot watering. There is a problem that is wasted. For this reason, in the conventional water heater, as disclosed in Japanese Patent Application Laid-Open No. H10-267401, when the operator instructs automatic bath tub filling and then instructs automatic bath tub cleaning, the water heater is not operated. I was

[0006]

As described above, in the above-described conventional water heater, when the automatic bathtub cleaning is instructed immediately after the remote controller 3 instructs the automatic bathtub hot water filling, the control unit 4A controls the automatic bathtub hot water supply. Since the bathtub automatic cleaning is performed immediately after the bathing is performed, there is a problem that the operation of the bathtub automatic hot water filling and hot water are wasted. In addition, since the water heater is not operated when the bathtub automatic cleaning is instructed after the bathtub automatic watering is instructed, the operator incorrectly instructs the bathtub automatic watering and then instructs the bathtub automatic cleaning, and immediately returns to the spot. If the user is away, he or she does not notice the stop of the water heater, and needs to select an instruction again, which has a problem of poor handling. In this water heater and bath tub hot water washing method, even when the bath tub automatic washing is instructed immediately after the bath tub automatic hot water filling is instructed,
It is required to perform bathtub automatic hot water filling after performing bathtub automatic cleaning.

[0007] The present invention provides a water heater capable of performing bathtub automatic hot water filling after bathtub automatic cleaning, even when the automatic bathtub cleaning is instructed after instructing bathtub automatic hot water filling. An object of the present invention is to provide a bath tub hot water washing method for performing bath tub automatic hot water filling after performing bath tub automatic washing even when the bath tub automatic washing is instructed after instructing hot water filling.

[0008]

SUMMARY OF THE INVENTION In order to solve this problem, a water heater according to the present invention has a bathtub automatic cleaning function and a bathtub automatic hot water filling function, and a hot water switch and a bathtub for instructing automatic bathtub hot water filling. A water heater comprising a remote controller having a cleaning switch for instructing automatic cleaning, and a water heater main body having a remote control input recognition unit for receiving a signal from the remote controller and recognizing the signal content and a control unit, The control unit fixedly sets the standby time and measures a post-instruction elapsed time which is an elapsed time after the instruction of the bathtub automatic hot water filling, a timer control means, and determines and gives an instruction from the remote controller. Remote control input determining means for determining whether the elapsed time exceeds the standby time based on the measurement result of the timer control means; Cleaning control means for performing a cleaning process based on the instruction from the remote control input determination means when the remote control input determination means determines that the bathtub automatic cleaning is included within the interval and the content of the instruction from the remote controller; The instruction from the remote control input determination means when the remote control input determination means determines that the elapsed elapsed time has exceeded the standby time, or when the remote control input determination means determines after the cleaning process that the remote controller has instructed automatic hot water bath filling. And a hot water filling control means for performing a hot water filling process based on the above. Thus, even when the automatic bathtub washing is instructed after the automatic bathtub instructing, a water heater capable of performing the automatic bathtub hotwashing after the automatic bathtub washing is obtained.

In order to solve this problem, a bathtub hot water cleaning method of the present invention has a bathtub automatic cleaning function and a bathtub automatic hot water filling function, and performs a bathtub automatic cleaning instruction and a bathtub automatic hot water filling instruction. A hot water bath cleaning method in a water heater provided with: an initialization step of fixedly setting a standby time; and determining whether the content of an instruction from a remote controller is a bathtub automatic hot water filling instruction or a bathtub automatic cleaning instruction. A remote control input determining step, a measuring step of measuring a post-instruction elapsed time which is an elapsed time from the bathtub automatic hot water filling instruction when it is determined in the remote control input determining step that an instruction of automatic bath water filling has been given from the remote controller; It is determined whether or not the post-elapsed time exceeds the standby time, and the post-instruction elapsed time is within the standby time. A first determination step for determining whether or not an automatic bathtub cleaning instruction has been issued, and a cleaning step for performing a cleaning process when the elapsed time after the instruction does not exceed the standby time and the automatic bathtub cleaning instruction has been issued in the determination step. The control step, a second determination step for determining whether or not an instruction for bathtub automatic hot water filling has been issued from the remote controller after the cleaning processing, and the first determination step determined that the elapsed time after the instruction has exceeded the standby time. And a hot water filling control step of performing a hot water filling process when it is determined after the cleaning process that the remote controller has instructed the automatic hot water filling from the remote controller in the second determination step. Thereby, even when the automatic bathtub cleaning is instructed after the automatic bathtub hotline instruction, the bathtub hotline cleaning method for performing the automatic bathtub hotwatering after the automatic bathtub cleaning is obtained.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A water heater according to a first aspect of the present invention has a bath tub automatic cleaning function and a bath tub automatic hot water filling function, and a hot water filling switch for instructing bath tub automatic hot water filling and a bath tub automatic cleaning function. A water heater comprising: a remote controller having a cleaning switch for instructing; and a water heater main body having a remote control input recognition unit for receiving a signal from the remote controller and recognizing the signal content and a control unit, the control unit comprising: Is a timer control means for setting the standby time fixedly and measuring the elapsed time after the instruction, which is the elapsed time after the instruction of the bathtub automatic hot water filling, and determining the content of the instruction from the remote controller and determining the elapsed time after the instruction. Remote control input determination means for determining whether or not the time exceeds the standby time based on the measurement result of the timer control means; When the remote control input determination means determines that the content of the instruction from the remote controller includes bathtub automatic cleaning, cleaning control means for performing a cleaning process based on the instruction from the remote control input determination means, and elapsed time after the instruction. If the remote control input determination means determines that the standby time has been exceeded, or if the remote control input determination means determines after the cleaning process that the remote controller has instructed automatic hot water filling, the hot water is determined based on the instruction from the remote control input determination means. And hot water filling control means for performing a filling process. With this configuration, after instructing the bathtub automatic hot water filling, if the elapsed time after the instruction exceeds the standby time, the bathtub automatic hot water filling is performed, but if the elapsed time after the instruction is within the standby time, the bathtub automatic cleaning is performed. When instructed, there is an effect that bathtub automatic cleaning is performed before bathtub automatic hot water filling.

[0011] The method for cleaning hot water in a bath tub according to a second aspect of the present invention is a hot water supply having a bathtub automatic cleaning function and a bathtub automatic hot water filling function, and a remote controller for issuing a bathtub automatic cleaning instruction and a bathtub automatic hot water filling instruction. A bathtub hot water washing method in a vessel, wherein an initialization step for fixedly setting a standby time and a remote control input determining step for determining whether the content of an instruction from a remote controller is a bathtub automatic hot water filling instruction or a bathtub automatic cleaning instruction And, in the remote control input determination step, when it is determined that there is a bathtub automatic hot water filling instruction from the remote controller, a measuring step of measuring the elapsed time after the instruction is an elapsed time from the bathtub automatic hot water filling instruction, the elapsed time after the instruction Determine whether the waiting time has been exceeded and if the elapsed time after the instruction is within the waiting time, wash the bathtub automatically A first determining step of determining whether or not there has been an instruction; a cleaning controlling step of performing a cleaning process when the elapsed time after the instruction does not exceed the standby time in the determining step and determining that there has been an automatic bathtub cleaning instruction; A second determination step of determining whether or not an instruction for automatic bath tub filling has been given from the remote controller after the processing;
If it is determined in the first determination step that the elapsed time after the instruction has exceeded the standby time, or if it is determined after the cleaning process that the remote controller has instructed automatic bath water filling from the remote controller in the second determination step, And a hot water filling control step for performing the following. With this configuration, after instructing the bathtub automatic hot water filling, if the elapsed time after the instruction exceeds the standby time, the bathtub automatic hot water filling is performed, but if the elapsed time after the instruction is within the standby time, the bathtub automatic cleaning is performed. When instructed, the bathtub automatic hot water filling is not performed, and after the bathtub automatic cleaning is performed first, the bathtub automatic hot water filling is performed.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. (Embodiment) FIG. 1 is a control block diagram showing a water heater according to an embodiment of the present invention. In FIG. 1, 1 is FIG.
1 is a remote control input recognition unit similar to that of FIG. 4, 3 is a remote controller similar to that of FIG. 4, and 4 is a control unit. That is, the control unit 4A of FIG.
Is replaced by the water heater according to the present embodiment,
The configuration of another bath system according to the present embodiment is the same as that of FIG. In FIG. 1, reference numeral 31 denotes an operation switch for inputting an instruction to start and stop operation, 32 denotes a cleaning switch for inputting an instruction for automatic bathtub cleaning, and 33 denotes an instruction for automatic bathtub hot water filling. Hot water switch,
Reference numeral 41 denotes remote control input determining means for performing various determinations based on the result of recognition by the remote control input recognizing section 1a and time measurement by timer control means 44, which will be described later. Hot water filling control means 43 for performing a spreading operation, cleaning control means 43 for performing a bathtub automatic cleaning operation based on the result of determination by the remote control input determining means 41, and 44 a timer control means for setting time and measuring time. In the present embodiment, each unit is configured by software, but the same operation and effect can be obtained even if configured by hardware.

The bathtub automatic hot water filling operation and the bathtub automatic cleaning operation in the water heater configured as described above will be described with reference to FIGS. FIG. 2 is a flowchart showing a main flow (main operation of the control unit 4) in the control unit 4, and FIG. 3 is a flowchart showing a bath tub hot water washing process as a sub flow (sub operation of the control unit 4) in the control unit 4. First, the operation in the main flow shown in FIG. 2 will be described. When the operation start is instructed by the operation switch 31, the water heater is started, and when the control unit 4 starts operating, a standby time (for example, 5 seconds) is set as an initial setting.
TS is set in the timer control means 44 (S1, initialization step), and the hot water filling flag FA and the cleaning flag FB are set.
Is set to 0 (S2, S3). Thereafter, the A process (a process that is not directly related to the operation of the water heater according to the present embodiment) is performed (S4), and the bathtub hot water washing process is performed (S5). When all the processes after the process A are performed, the process returns to the step 4, and the same operation is repeated thereafter. The setting of the standby time TS is performed by the timer control means 44 based on an instruction from the remote control input determination means 41. The standby time set in the timer control means 44 is a fixed value that does not change thereafter.

Next, the bath tub hot water washing process in step 5 of FIG. 2 will be described with reference to FIG. The bath tub hot water washing process is divided into the following six cases according to the contents of an instruction from the remote controller 3. The first is a case where the bathtub automatic cleaning is instructed by the cleaning switch 32 within a predetermined time (standby time) after the bathtub automatic watering is instructed by the hot water switch 33, and the second is a case where the bathtub is automatically switched by the hot water switch 33. This is a case where an instruction for automatic cleaning of the bathtub by the cleaning switch 32 is given after a predetermined time (standby time) has elapsed since the instruction for the automatic hot water filling. Third, when the bathtub automatic hot water filling by the hot water switch 33 and the bathtub automatic cleaning by the cleaning switch 32 are instructed at the same time, fourth, after the bathtub automatic cleaning by the cleaning switch 32 is instructed, the bathtub by the hot water switch 33 is issued. This is a case in which automatic hot water filling is instructed. Fifth, the hot water switch 3
If only the bathtub automatic hot water filling by 3 is specified, the sixth
Is a case where only the automatic cleaning of the bathtub by the cleaning switch 32 is instructed.

First, after the bathtub automatic hot water filling is instructed by the hot water filling switch 33, the first bath bath cleaning by the cleaning switch 32 is instructed within a predetermined time (standby time) TS.
The case will be described. In FIG. 3, the remote control input determination means 41 determines whether or not an ON signal of the hot water switch 33 (a signal generated when the hot water switch 33 is turned on) is input based on a signal from the remote control input recognition unit 1a. A determination is made (S11, remote controller input determination step). When it is determined that the ON signal of the hot water switch 33 has been input, the timer control means 44 starts measuring the post-instruction elapsed time TP, which is the elapsed time since the detection of the ON signal of the hot water switch 33 (S12). The predetermined hot water filling flag FA is set to 1 (S13). The ON signal input from the hot water switch 33 is self-held by the remote controller input recognition unit 1a.
After the end of the process of step 3, the ON signal is canceled and the signal becomes an OFF signal. When the ON signal of the hot water filling switch 33 is input again, the ON signal is again input to the remote controller input recognition unit 1.
a is self-held. The same applies to the cleaning switch 32 and the operation switch 31. Next, the remote control input determination means 41 determines whether or not an ON signal of the cleaning switch 32 has been input based on the signal from the remote control input recognition unit 1a (S14, remote control input determination step). When it is determined that the ON signal has been input, the cleaning flag FB
= 1 (S15). Next, the remote controller input determining means 4
1 determines whether the hot water filling flag FA is 1 (S1).
6, remote controller input determination step). In the first case, since the hot water filling flag FA = 1, the process proceeds to step 17, and the elapsed time TP after the instruction is set to the standby time (predetermined time)
It is determined whether or not the time has exceeded the TS (first determination step). The post-instruction elapsed time TP is measured by the timer control means 44 based on the instruction in the remote controller input determination step 41 (measurement step). Initially elapsed time TP after instruction
Does not exceed the standby time TS, the process proceeds to step 18 and determines whether or not the cleaning flag FB is 1 (first determination step). In the first case, since the instruction for the automatic cleaning of the bathtub by the cleaning switch 32 has not been issued at this time,
The process returns to step 4 via another process not shown (see FIG. 2). In the first case in which the cleaning switch 32 is turned on within the standby time TS in which the bathtub hot water cleaning process of FIG. 3 is repeated several times, the cleaning switch 32 is turned on, and if it is determined in step 18 that the cleaning flag FB = 1, The remote control input determination unit 41 instructs the cleaning control unit 43 to perform a cleaning process. Upon receiving this instruction, the cleaning control unit 43 starts the cleaning process (S19, cleaning control step). After the completion of the cleaning process, the remote control input determination means 41 sets the flag FB to 0 (S20). Next, the remote control input determining means 41 determines that FA =
It is determined whether it is 1 (S21, second determination step).
In the first case, since FA = 1, the process proceeds to step 22. When the hot water filling process in step 22 ends, each flag FA = FB = 0 (S23), and the post-instruction elapsed time T
As P = 0 (S24), the process returns to step 4.
This ends the processing in the first case.

Next, a description will be given of a second case in which the bath switch automatic cleaning is instructed by the cleaning switch 32 after a lapse of a predetermined time (standby time) TS after the bath water automatic switch filling instruction by the hot water filling switch 33. In the second case, steps 11 to 15 are the same as those in the first case, and a description thereof will be omitted. First, the remote controller input determining means 41
Determines whether the hot water flag FA is 1 (S1).
6). When the hot water filling switch 33 is turned on, the hot water filling flag FA = 1, so that the process proceeds to step 17 and after the bathtub automatic hot water filling instruction by turning on the hot water filling switch 33 is input to the remote control input determining means 41. It is determined whether or not the elapsed time (elapsed time after instruction) TP exceeds the standby time (predetermined time) TS. At first, since the elapsed time TP after the instruction does not exceed the standby time (for example, 5 seconds) TS, the process proceeds to step 18 and the cleaning flag FB is set to 1
It is determined whether or not. At this point, since the instruction for the automatic cleaning of the bathtub by the cleaning switch 32 has not been issued, the process returns to step 4 (see FIG. 2). By repeating the bath tub hot water washing process several times in FIG.
Exceeds the standby time TS (S17), the remote control input determining means 41 instructs the hot water control means 42 to hot water. Upon receiving this instruction, the hot water filling control means 42 starts hot water filling processing (S22). After completion of the hot water filling process, the remote control input determination means 41 sets each flag FA = FB = 0 (S23), and sets the elapsed time TP = 0 after the instruction (S2).
4) Return to step 4. Therefore, after the hot water filling process is started, a signal from the cleaning switch 33 is not accepted. Here, the operation of steps 11 to 15 in the case of repeating the bath tub hot water washing process several times will be described. In step 11, since the ON signal of the hot water filling switch 33 is canceled in the remote control input recognition unit 1a (as described above, step 1).
After the processing of steps 2 and 13 is completed, the ON signal of the hot water filling switch 33 is canceled.)
Move to 4. Since the cleaning switch 32 has not output the ON signal, the process proceeds from step 14 to step 16. In steps 11 to 15, the above operation is repeated.
Thus, the processing in the second case ends. It should be noted that after the post-instruction elapsed time TP exceeds the standby time TS, the cleaning switch 3
When the instruction for bathtub automatic cleaning by the instruction 2 is given, it is the same as the case where only the sixth cleaning switch 32 is turned on.
The description is omitted.

Next, a description will be given of a third case in which automatic bathtub filling by the hot water switch 33 and automatic bathtub cleaning by the cleaning switch 32 are simultaneously instructed. In the third case, steps 11 to 15 are the same as those in the first case, and a description thereof will be omitted. First, the remote control input determining means 41 determines whether or not the hot water filling flag FA is 1 (S16). When the hot water switch 33 and the cleaning switch 32 are turned on, the hot water flag FA = 1 (and FB = 1), so the flow proceeds to step 17 to determine whether the elapsed time TP after the instruction exceeds the standby time TS. Determine whether or not. At first, since the elapsed time TP after the instruction does not exceed the standby time (for example, 5 seconds) TS, the process shifts to step 18 to determine whether the cleaning flag FB is 1 or not. At this time, the instruction for the automatic cleaning of the bathtub by the cleaning switch 32 has been issued and FB = 1, so the remote control input determination means 41 instructs the cleaning control means 43 to perform the cleaning process. The cleaning control unit 43 starts the cleaning process (S19). After the completion of the cleaning process, the remote controller input determination unit 41 sets the flag FB to 0 (S20). Next, the remote controller input determining means 41 determines whether FA = 1 (S21). In the third case, since FA = 1, the flow shifts to step 22, where hot water filling processing is performed. Subsequent steps are the same as in the first case, and a description thereof will be omitted.

Next, a description will be given of a fourth case in which the bath switch automatic washing is instructed by the hot water filling switch 33 after the bath switch automatic washing is instructed by the washing switch 32. 4th
In the case of, steps 11 to 15 are the same as in the first case, and a description thereof will be omitted. First, the remote control input determining means 41 determines whether or not the hot water filling flag FA is 1 (S16). Here, since FB = 1 and FA = 0, the process proceeds to step 18. In step 18, since FB = 1, the remote controller input determination means 41 instructs the cleaning control means 43 to perform the cleaning processing, and the cleaning control means 43 performs the cleaning processing (S19). After the completion of the cleaning process, the remote control input determination means 41 sets the flag FB = 0 (S20),
It is determined whether or not A = 1 (S21). F in step 21
If it is determined that A is not 1, the process returns to step 4 (see FIG. 2). When the process proceeds to step 16 by moving to the bath tub hot water washing process of step 5 via the process of step 4 and the like, the remote control input determination means 41 determines whether FA = 1. When FA = 0 is maintained, the operation of returning to step 4 via step 18 is repeated. Next, at step 16, FA =
If it is determined to be 1, the process proceeds to step 17. In step 17, it is determined whether or not the post-instruction elapsed time TP exceeds the standby time TS.
The operation of returning to step 4 via is repeated.
If TP> TS is determined in step 17, step 2
The process proceeds to the hot water filling process of No. 2. Subsequent processing is the same as in the first case, and a description thereof will be omitted. Thus, the processing in the fourth case ends.

Next, a fifth case in which only the bathtub automatic hot water filling by the hot water filling switch 33 is instructed will be described. The operations in steps 11 to 15 are the same as in the first case, and a description thereof will be omitted. First, the remote control input determining means 41 determines whether or not the hot water filling flag FA is 1 (S17). Since FA = 1 and FB = 0 here, the process proceeds from step 17 to 18 and returns to step 4. When TP> TS by repeating this, the process proceeds to the hot water filling process in step 22. In step 22, the hot water filling control means 42 starts hot water filling processing (S22). After completion of the hot water filling process, the remote control input determination means 41 sets each flag FA = FB = 0 (S23),
The elapsed time after instruction TP = 0 (S24), and step 4
Return to Finally, a sixth case in which only the bathtub automatic cleaning by the cleaning switch 32 is instructed will be described.
The operations in steps 11 to 15 are the same as in the first case, and a description thereof will be omitted. First, the remote control input determining means 41 determines whether or not the hot water filling flag FA is 1 (S17). Here, FA = 0 and FB = 1,
The process proceeds from step 16 to 18 to start the cleaning process (S19). After completion of the cleaning process, the remote controller input determination means 4
1 sets the flag FB = 0 (S20), then determines that FA = 0 (S21), and returns to step 4.

As described above, according to the present embodiment, the initialization step (S1) for fixedly setting the standby time TS.
A remote controller input determining step (S11, S14, S16) for determining whether the content of the instruction from the remote controller 3 is a bathtub automatic hot water filling instruction or a bathtub automatic cleaning instruction, and the remote controller input hot water filling in the remote control input determining step. A measuring step of measuring a post-instruction elapsed time TP which is an elapsed time from the bathtub automatic hot water filling instruction when it is determined that the instruction has been given;
A determination step (S17, S18) for determining whether P exceeds the standby time TS and for determining whether an automatic bathtub cleaning instruction has been issued when the post-instruction elapsed time TP is a TS within the standby time; If it is determined in step that the post-instruction elapsed time TP exceeds the standby time TS, a hot water filling control step of performing hot water filling processing (S22), and in the determination step, the post-instruction elapsed time TP does not exceed the standby time TS and When it is determined that the bathtub automatic cleaning instruction has been issued, a cleaning control step (S19) of performing a cleaning process is provided so that after the automatic hot water filling instruction, if the elapsed time TP exceeds the standby time TS after the instruction. Indicates that the bathtub is automatically filled with hot water, but the elapsed time TP after the instruction is the standby time TS
If the bathtub automatic cleaning is instructed when it is inside, it is possible to perform bathtub automatic hot water filling after performing bathtub automatic cleaning first, so instruct bathtub automatic hot water filling and then instruct bathtub automatic cleaning Even in this case, if the elapsed time TP after the instruction is an instruction for automatic bathtub cleaning within the standby time TS, the bathtub automatic hot water filling can be performed after the automatic bathtub cleaning.

[0021]

According to the water heater according to the first aspect of the present invention, the hot water supply switch has a bathtub automatic cleaning function and a bathtub automatic hot water filling function, and a hot water filling switch and a bathtub automatic cleaning function. A water heater comprising: a remote controller having a cleaning switch for instructing; and a water heater main body having a remote control input recognition unit for receiving a signal from the remote controller and recognizing the signal content and a control unit, the control unit comprising: Is a timer control means for setting the standby time fixedly and measuring the elapsed time after the instruction, which is the elapsed time after the instruction of the bathtub automatic hot water filling, and determining the content of the instruction from the remote controller and determining the elapsed time after the instruction. Remote control input determination means for determining whether or not the time exceeds the standby time based on the measurement result of the timer control means; When the remote control input determination means determines that the content of the instruction from the remote controller includes bathtub automatic cleaning, cleaning control means for performing a cleaning process based on the instruction from the remote control input determination means, and elapsed time after the instruction. If the remote control input determination means determines that the standby time has been exceeded, or if the remote control input determination means determines after the cleaning process that the remote controller has instructed automatic hot water filling, the hot water is determined based on the instruction from the remote control input determination means. By having the hot water filling control means for performing the hot water filling process, the automatic hot water filling is performed when the elapsed time after the instruction exceeds the standby time without the automatic bath filling instruction being issued after the automatic bath filling instruction is issued. If the bathtub automatic cleaning is instructed when the elapsed time after the instruction is within the standby time, after performing the bathtub automatic cleaning first Since bathtub automatic hot water filling can be performed, even if automatic bathtub cleaning is instructed after instruction of automatic bathtub filling, even if the elapsed time after the instruction is an instruction of automatic bathtub cleaning within the standby time. For example, there is an advantageous effect that bathtub automatic hot water filling can be performed after bathtub automatic cleaning.

According to the bath tub hot water washing method of the second aspect, the remote controller has a bath tub automatic cleaning function and a bath tub automatic hot water filling function, and performs a bath tub automatic cleaning instruction and a bath tub automatic hot water filling instruction. A method for cleaning a bathtub hot water in a water heater, comprising: an initialization step for fixedly setting a standby time; and a remote control input for determining whether an instruction from a remote controller is a bathtub automatic hot water filling instruction or a bathtub automatic cleaning instruction. A determining step, a measuring step of measuring a post-instruction elapsed time which is an elapsed time from the bathtub automatic hot water filling instruction when it is determined in the remote control input determining step that the instruction of the bathtub automatic hot water filling has been given from the remote controller, It is determined whether the time exceeds the standby time, and if the elapsed time after the instruction is within the standby time, the bathtub A first determination step of determining whether a dynamic cleaning instruction has been issued; and a cleaning control step of performing a cleaning process when the elapsed time after the instruction has not exceeded the standby time in the determination step and it has been determined that the bathtub automatic cleaning instruction has been issued. A second determining step for determining whether or not an instruction for automatic bathtub hot water filling has been given from the remote controller after the cleaning process; and a first determining step for determining whether or not the elapsed time after the instruction has exceeded the standby time, or A hot water filling control step of performing a hot water filling process when it is determined after the cleaning process that the remote controller has instructed automatic bath water filling from the remote controller in the determination step of 2; If the elapsed time after the instruction exceeds the standby time without being performed, bathtub automatic hot water filling will be performed, but the elapsed time after the instruction will be When it is within the time, when automatic bathtub cleaning is instructed, automatic bathtub hot water filling can be performed after performing bathtub automatic cleaning first, so automatic bathtub cleaning is instructed after automatic bathtub hot water filling is instructed. Even when the instruction is given, if the elapsed time after the instruction is the instruction for the automatic bathtub cleaning within the standby time, the advantageous effect that the bathtub automatic hot water filling can be performed after the automatic bathtub cleaning is performed is obtained.

[Brief description of the drawings]

FIG. 1 is a control block diagram showing a water heater according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a main operation of a control unit of the water heater of FIG. 1;

FIG. 3 is a flowchart showing a sub-operation of a control unit of the water heater of FIG. 1;

FIG. 4 is a configuration diagram showing a bath system having a conventional water heater.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hot-water heater main body 1a Remote-control input recognition part 2 Bathtub 3 Remote controller 4 Control part 5 Circulating water suction pipe 5a Drainage pipe 5b Discharge pressure adjustment pipe 6 Circulation pump 7 Drainage valve 7a, 7b, 7c, 15a, 15b, 15c Port 8 Drainage Pipe 9 Heat exchange water pipe 10 Heat exchanger 11 Burner 12 Hot water pipe 13 Washing water pipe 14 Reheating water pipe 15 Three-way valve 16 Water supply pipe 17 Heating pipe 18 Bathtub side water supply pipe 19 Hot water filling electromagnetic valve 20 Check valve 21 Faucet Reference Signs List 22 Reheating hot tap 23 Cleaning nozzle 24 Circulating water suction part 25 Suction pipe 31 Operation switch 32 Cleaning switch 33 Hot water filling switch 41 Remote control input determination means 42 Hot water filling control means 43 Cleaning control means 44 Timer control means

Continued on the front page (72) Inventor Yukiaki Tsuda 2-1 Chofu Ogimachi, Shimonoseki-shi, Yamaguchi F-term in the Chofu Seisakusho Co., Ltd. (Reference) 3L024 CC03 DD02 DD17 DD27 EE02 GG38 GG41 HH38 HH52

Claims (2)

[Claims] 1. A remote controller having a bathtub automatic cleaning function and a bathtub automatic hot water filling function, and having a hot water filling switch for instructing automatic bathtub hot watering and a washing switch for instructing automatic bathtub cleaning, and A water heater main body having a remote control input recognition unit and a control unit for inputting the signal of and recognizing the signal content, wherein the control unit fixedly sets a standby time and Timer control means for measuring an elapsed time after the instruction, which is an elapsed time after the instruction of the bathtub automatic hot water filling, and determining whether or not the content of the instruction from the remote controller and whether or not the elapsed time after the instruction exceeds the standby time. Remote control input determination means for determining whether or not the timer control means based on the measurement result, the elapsed time after the instruction is within the standby time and the Cleaning control means for performing a cleaning process based on the instruction from the remote control input determining means when the remote control input determining means determines that the content of the instruction from the mote controller includes bathtub automatic cleaning; If the remote control input determining means determines that the elapsed time has exceeded the standby time, or if the remote control input determining means determines after the cleaning process that the remote controller has instructed the bathtub automatic hot water filling, the remote control A hot water supply device comprising hot water filling control means for performing hot water filling processing based on an instruction from an input determining means. 2. A bathtub hot water cleaning method for a water heater having a bathtub automatic cleaning function and a bathtub automatic hot water filling function, and having a remote controller for performing a bathtub automatic cleaning instruction and a bathtub automatic hot water filling instruction, An initialization step of fixedly setting a standby time; a remote control input determining step of determining whether the content of the instruction from the remote controller is a bathtub automatic hot water filling instruction or a bathtub automatic cleaning instruction; and the remote control input determining step A measuring step of measuring a post-instruction elapsed time which is an elapsed time from the bathtub automatic hot water filling instruction when it is determined that there is an instruction of bathtub automatic hot water filling from the controller, and an elapsed time after the instruction exceeding the standby time And if the elapsed time after the instruction is within the standby time, the bathtub automatic cleaning finger A first determination step of determining whether or not there is an instruction, and a cleaning control for performing a cleaning process when it is determined in the determination step that the elapsed time after the instruction does not exceed the standby time and that the bathtub automatic cleaning instruction has been issued. A step, a second determination step of determining whether or not the remote controller has instructed the bathtub automatic hot water filling after the cleaning processing, and the elapsed time after the instruction exceeds the standby time in the first determination step. A hot water filling control step of performing a hot water filling process when it is determined after the washing process that it is determined that the bathtub automatic hot water filling has been instructed from the remote controller in the second determination step or in the second determination step. Features bath tub hot water washing method.